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Finding the Fourth Proportional to 28,801.80, 43,192.80 and 14,001.18

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Solution

The fourth proportional to 28,801.80, 43,192.80 and 14,001.18 is: 20,996.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,801.80 : 43,192.80 = 14,001.18 : x
  2. Step 2: Convert to fraction form
    28,801.80/43,192.80 = 14,001.18/x
  3. Step 3: Cross multiply
    28,801.80x = 43,192.80 × 14,001.18
  4. Step 4: Simplify right side
    28,801.80x = 604,750,167.50
  5. Step 5: Solve for x
    x = 604,750,167.50/28,801.80
  6. Step 6: Final answer
    x = 20,996.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.